Monk and Bartley worked together during Monk’s managerial reign at Swansea with the centre-back signing a new a three-year deal at the club under Monk in July 2014.

But the defender made only eight appearances for the Welsh side last season and arrives at Leeds a matter of hours after United confirmed the departure of fellow centre-back Giuseppe Bellusci to Italian side Empoli on a season-long loan, with a view to a permanent deal next summer.

“It feels fantastic to be here,” said Bartley.

“I found out about a week ago that Leeds were interested and, straightaway, it was something that I was really looking forward to.

“I’m just happy to be here now and have everything signed.

“There were a few other teams interested but as soon as I spoke to the gaffer, I told my agent that this was the only club for me.

“With the history of the club and how big the club is, it was a no-brainer for me.

“I want to come here and play week-in, week-out in what we hope will be a really successful season for the club.”

United boss Garry Monk added: “I’m delighted to get Kyle in. Kyle has worked underneath me for the last two years and I know him very well - I know what he’s capable of.

“I think defence is an area where we need to add strength to the quality that we already have. “Kyle has worked with me and he knows how I work, so that helps.

“I think he’s at a stage of his career where he wants to prove himself and try and fight for a place. “

“He’s big, he’s strong and he’s a very good defender. He’s a good leader, he talks very well, he’s a good organiser and a good communicator.